Feature:1. 2.4G Wireless: This Erhu microphone adopts 2.4G wireless frequency and anti interference technology to ensure stable audio transmission without delay.2. Plug and Play: This violin microphone pickup adopts the latest frequency hopping technology, and frequency pair is not required, support automatic connection, plug and play.3. Noise Reduction: This contact microphone pickup is designed with inbuilt chip that provides powerful noise reduction, effectively filtering unnecessary noise, provide pure sound quality.4. 3.5mm to 6.35mm Adapter: This Erhu pickup comes with 3.5mm to 6.35mm adapter, which is suitable for all kinds of audio equipments, providing easy and flexible connection.5. Premium Material: This acoustic guitar pickup adopts strong ABS material. Easy to install, use and detach, offering great convenience.Specification:Item Type: Erhu MicrophoneMaterial: ABSBattery Type: Lithium BatteryReceiver Battery Capacity: 400mAh (Battery Included)Transmitter Battery Capacity: 400mAh (Battery Included)Transmission Frequency: 2400HzAudio Response: 20 to 20KHzAudio Signal: Digital Sampling, Mixed OutputPower Consumption: 35mACharging Time: About 1.5 HoursUsage Time: About 12 HoursApplicable Equipment: Erhu.Package List:1 xErhu Microphone1 x Receiver1 x Head Wearing Holder1 x User Manual1 x 1 to 2 Charging Cable1 x 3.5mm to 6.35mm Adapter1 x Band1 x Clip